406443338 has 16 divisors (see below), whose sum is σ = 710980800. Its totient is φ = 174189708.

The previous prime is 406443337. The next prime is 406443397. The reversal of 406443338 is 833344604.

It is a junction number, because it is equal to n+sod(n) for n = 406443298 and 406443307.

It is not an unprimeable number, because it can be changed into a prime (406443337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295556 + ... + 296927.

It is an arithmetic number, because the mean of its divisors is an integer number (44436300).

Almost surely, 2^406443338 is an apocalyptic number.

406443338 is a deficient number, since it is larger than the sum of its proper divisors (304537462).

406443338 is an equidigital number, since it uses as much as digits as its factorization.

406443338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592506 (or 592492 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 406443338 is about 20160.4399257556. The cubic root of 406443338 is about 740.7414883281.

The spelling of 406443338 in words is "four hundred six million, four hundred forty-three thousand, three hundred thirty-eight".